diff --git a/flake.nix b/flake.nix
index 180fdac..7cef0da 100644
--- a/flake.nix
+++ b/flake.nix
@@ -105,6 +105,13 @@
           };
       };
 
+      # nix eval .#domains --json
+      domains = inputs.self.lib.getDomainsPerHost [
+        "gospel"
+        "node"
+        "pi4"
+      ] inputs.self.nixosConfigurations;
+
       # TODO: Re-enable this when I figure out how to prevent needing to build
       # dependencies for architectures other than the host machine
       # checks = builtins.mapAttrs (system: deployLib: deployLib.deployChecks inputs.self.deploy) inputs.deploy-rs.lib;
diff --git a/lib/helpers/default.nix b/lib/helpers/default.nix
new file mode 100644
index 0000000..0fa0426
--- /dev/null
+++ b/lib/helpers/default.nix
@@ -0,0 +1,13 @@
+{
+  lib,
+  ...
+}:
+rec {
+  getValues = keys: attrs: lib.attrsets.filterAttrs (name: value: builtins.elem name keys) attrs;
+
+  getDomainNames =
+    cfgs:
+    lib.attrsets.mapAttrs (name: cfg: builtins.attrNames cfg.config.services.nginx.virtualHosts) cfgs;
+
+  getDomainsPerHost = systemNames: nixosConfigs: getDomainNames (getValues systemNames nixosConfigs);
+}